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int (e^(x)-1)/(e^(x)+1) dx =...

`int (e^(x)-1)/(e^(x)+1) dx =`

A

`2 log (e^(x)+1)-x`

B

`x+2 log (e^(x)+1)`

C

`log (e^(x)+1)+2x`

D

`x-2 log (e^(x)+1)`

Text Solution

Verified by Experts

The correct Answer is:
A
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